profcheck: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/profcheck - from package: argyll

You may install the required package with command apt-get install {package}

Error in other languages:
profcheck: bevel nie gevind nie
profcheck: comandă negăsită
profcheck: comando não encontrado
profcheck: commande introuvable
profcheck: command not found
profcheck: käsku ei ole
profcheck: không tìm thấy lệnh
profcheck: komanda nerasta
profcheck: Kommando nicht gefunden.
profcheck: kommandot finns inte
profcheck: komut yok
profcheck: nie znaleziono polecenia
profcheck: níor aimsíodh an t-ordú
profcheck: no se encontró la orden
profcheck: no s'ha trobat l'ordre
profcheck: opdracht niet gevonden
profcheck: parancs nem található
profcheck: perintah tidak ditemukan
profcheck: príkaz nenájdený
profcheck: příkaz nenalezen
profcheck: команда не найдена
profcheck: командата не е открита
profcheck: 命令找不到
profcheck: コマンドが見つかりません